DNA Structure & Replication

What is the monomer for Nucleic Acids (DNA and RNA)?

• Amino Acid

• Nucleotide

• Glucose

• Fatty Acid

What are the 3 parts that make up a nucleotide?

• Phosphate, glucose, nitrogen base

• Phosphorous, Sugar, Nitrogen Base

• Phosphate, Sugar, Nitrogen Base

• Phospholipids, Proteins, Carbohydrates

DNA has what kind of backbone (green in the diagram below)

• Sugar-Base

• Sugar- Phosphate

• Phosphate-Base

• Sugar

What part of the nucleotide actually codes for information, like 'letters' in a word?

• the phosphates

• the bases

• the hydrogen bonds

• the sugars

DNA replicates by....

• chopping up the original strand of DNA and copying each piece

• making a completely separate copy of the original strand

• unzipping the original strand and using it as a template to copy the other half of the strand

Which two DNA bases are paired correctly?

• Thymine & Cytosine (T - C)

• Adenine & Guanine (A - G)

• Adenine & Thymine (A - T)

• Guanine & Thymine (G - T)

Which two DNA bases are paired correctly?

• Cytosine & Thymine (C - T)

• Cytosine & Guanine (C - G)

• Adenine & Cytosine (A - C)

• Guanine & Adenine (G - A)

What is the complementary DNA strand to this sequence: AATTCC

• GGCCTT

• TTAAGG

• UUAAGG

• CCGGAA

Replication (copying DNA) happens during which phase of the cell cycle?

• During the S phase of Interphase

• during the G1 phase of Interphase

• During the G2 phase of Interphase

• During mitosis

What kind of bond links the complementary bases of each strand together (the dotted lines in the drawing below)?

• Weak hydrogen bonds

• Strong Covalent Bonds

• Weak Ionic Bonds

• Strong Peptide Bonds